# 虚拟环境
import datetime
import keyword
import math
import operator
import sys
import time
import inspect
import uuid

# import numpy as np

# name: str = "知乎"
# count: float = 100
# scores: list[float] = [90.5, 85.0]
#
# b: bool = True

# x = 'runoob';
# sys.stdout.write(x + '\n')


# class A:
#     def __init__(self):
#         self.x = 1
#
#
# class B(A):
#     def __init__(self):
#         self.y = 2


# print(inspect.signature(str.capitalize))
# print(dir())
#
#

# print(inspect.signature(set.add))


s='''

SELECT * FROM performance_schema.host_cache;	查看主机缓存详情（连接错误次数、阻塞状态等）

'''

print(time.time())

print(s.lower())
# print(s.upper())




#
# current_date = datetime.date.today()
# print(current_date)
# while len(days) <= 100:
#     if current_date.weekday() < 5:
#         days.append(current_date);
#     current_date += datetime.timedelta(days=1)
#
# for date in reversed(days):
#     print(date.strftime("%Y-%m-%d"))
